阅读理解。
The weather is getting hotter. You are thirsty playing basketball or riding home from school. A cold drink
may be just the thing. But be careful what you are drinking. Something that looks cool may not be good for
your health. There are plenty of "energy drinks" on the market. Most of them have beautiful colors and cool
names. The lists on them tell you they are helpful to your health. Sounds great!
But after a careful check you may find that most energy drinks have lots of caffeine (咖啡因) in them.
These drinks are especially aimed at young people, students, busy people and sports players. Makers
sometimes say their drinks make you better at sports and can keep you awake. But be careful not to drink
too much.
Caffeine makes your heart beat fast. Because of this, the International Olympic Committee has limited (限
制) its use. Caffeine in most energy drinks is at least as strong as that in a cup of coffee or tea. Possible health
dangers have something to do with energy drinks. Just one box of energy drink can make you nervous, have
difficulty sleeping and can even cause heart problems. Scientists say that teenagers should be discouraged from
taking drinks with a lot of caffeine in them.
1. Many people like drinking energy drinks because of the following EXCEPT that _____. [ ]
A. they can keep them awake and better at sports
B. they have lots of caffeine
C. they have beautiful colors and cool names
D. they are said to be helpful to health
2. The main reason for people not to drink too much energy drinks is that they may cause _____. [ ]
A. heart problems
B. possible health dangers
C. sleeping difficulty
D. nervousness
3. The underlined word "discouraged" can be replaced (替换) with "_____". [ ]
A. encouraged
B. helped
C. stopped
D. disliked
4. From the passage we can know that _____. [ ]
A. sports players need to drink a lot of energy drinks
B. energy drinks are helpful to teenagers' study
C. advertisements are important in getting people to buy energy drinks
D. energy drinks are especially aimed at babies
5. Which of the following can be the best title (标题) of the passage? [ ]
A. What's the Use of Energy Drinks?
B. Why Can We Buy Energy Drinks?
C. Who Can Drink Energy Drinks?
D. What's That in Energy Drinks?
缺失，余留牙正常，进行可摘局部义齿修复，基牙
设计弯制卡环。
为二类观测线，应采用（）